and cotter pin for a complete rebuild of the stem seal

Contamination Protection: Dual metal shields (ZZ) provide a physical barrier against particulates while securing internal lubrication

this lower thermostat provides precise thermal sensing to maintain consistent water temperatures and system efficiency

Replacing a drifted or failed sensor with this 1172766 defrost thermostat restores the factory-spec timing for heating cycles

leak-free seal vital for maintaining the integrity of the combustion system

Williams P213400 Switch and cotter pin for aThe Williams P213400 Fan Selector Switch F160 30F is a critical OEM spec replacement component engineered for high performance direct vent and gravity wall furnaces. As a primary HVAC blower control switch, this unit facilitates precise multi speed fan regulation to maintain optimal thermal distribution and equipment efficiency. Designed specifically as a Williams furnace replacement part, the F160 30F integrates seamlessly with Williams models